package day20171128;

public class Test01 {
    public static void main(String[] args) {

        //int a[]=new int[5];
        /**int N=10;
         int[] a=new int[N];*/
        //char ch[][]=new char[4][5];
        //int a[][]=new int[4][];
        int[][] a = {{1, 2}, {3, 4, 5}, {6, 7, 8}, {9, 10}, {11, 12, 13, 14, 15}};
        System.out.println(a.length);
        System.out.println(a[2].length);
        System.out.println(a[3].length);


    }
}
